Bleach Treatment of Seeds and Sowing in Mineral Medium

I learned these techniques from two sources, and they provide much more detail. First, treatment of seeds using NAOCL solution was learned on Youtube from DRCEVNL at http://youtu.be/MGG2-YpGDWA (all of their videos are fantastic). I learned about the technique and benefit of sowing cactus seeds in a pure mineral medium from Leo A. Martin's paper "Growing Cactus from Seed" available at http://www.centralarizonacactus.org/assets/article/seed/CACSS_Article_Cactus_From_Seed_Leo_Martin.pdf.